Question

3/8+1/2+1 1/4-(1/28+5/7) помогите

Answer 1

$frac{3}{8}+frac{1}{2}+1 frac{1}{4}-(frac{1}{28} +frac{5}{7})=frac{3}{8}+frac{4}{8}+frac{10}{8}-(frac{1}{28}+frac{20}{28})=frac{17}{8}-frac{21}{28}=frac{119-42}{56}=frac{77}{56}$$=frac{11}{8}$